A scraper conveyor for suppressing coking dust
Patent Information
- Application Number
- CN202522535421.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-28
AI Technical Summary
焦化粉尘中含有的苯并芘等致癌物，会对现场操作人员的呼吸系统、心血管系统造成严重健康威胁，长期暴露会显著增加职业病风险，因此在输送时要避免粉尘飞出至输送机外部
本实用新型中，当物料排出时需从输送管中的倾斜段内腔经过，喷淋组件向倾斜段内腔喷撒水雾，将物料和粉尘打湿，实现粉尘抑制效果，避免物料在倾斜段出料端排出时，粉尘随物料散落而飞扬至外界环境，最终达成粉尘减排目标，装置可实现满负荷运输，无需因担忧运输速度过快引发粉尘过量问题而限制运行效率，显著提升了整体输送效能。
Smart Images
Figure CN224899869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scraper conveyor technology, and in particular to a coking dust suppression scraper conveyor. Background Technology
[0002] In the coking process, scraper conveyors are indispensable core conveying equipment, primarily undertaking important tasks such as coal powder transfer during coal preparation, coke powder collection during coking, and coke classification and conveying in the screening system. Coking dust is solid particulate matter generated throughout the coal coking process. This dust enters the scraper conveyor system during material transport, becoming the main source of dust generation during conveyor operation. Coking dust contains carcinogens such as benzo[a]pyrene, which pose serious health threats to the respiratory and cardiovascular systems of on-site operators. Long-term exposure significantly increases the risk of occupational diseases. Therefore, it is crucial to prevent dust from escaping outside the conveyor during transport.
[0003] Currently, scraper conveyors are generally designed as non-open, sealed structures when conveying materials, and dust in the materials is sucked away before conveying to prevent dust from flying around during conveying. However, when coking dust is discharged from the discharge end of the conveyor, the impact of the collision and falling of the materials during conveying can cause the materials to break and generate fine dust. The airflow will blow the dust directly from the discharge end into the surrounding environment, causing a sharp decline in the air quality of the work area and endangering the health of the on-site operators. In addition, the conveyor cannot be fully loaded for transportation, and the amount of material fed into the conveyor needs to be reduced to reduce the dust generated by the collision and falling of materials during transportation and discharge. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of releasing dust into the surrounding environment when materials are discharged, which endangers the health of on-site operators. To this end, we propose a coking dust suppression scraper conveyor.
[0005] To achieve the above objectives, this application adopts the following technical solution: a coking dust suppression scraper conveyor, comprising a conveying box, a partition plate provided in the middle of the inner cavity of the conveying box, the inner cavity of the conveying box being divided into a conveying chamber and a connecting chamber by the partition plate, a feeding assembly for injecting coking dust into the conveying chamber installed on the top of the conveying box, a scraper conveying assembly for conveying coking dust installed in the inner cavity of the conveying chamber, a discharge port for discharging coking dust opened on one side of the bottom of the partition plate, a discharge hopper fixedly connected to the discharge port, a conveying pipe fixedly connected to the discharge end of the bottom of the discharge hopper, a spraying assembly for wetting coking dust provided in the inner cavity of the conveying pipe, the spraying assembly including a water pump, an atomizing nozzle fixedly connected to the water outlet end of the water pump, the water outlet end of the atomizing nozzle being located in the inner cavity of the conveying pipe.
[0006] Preferably, the conveying pipe is composed of a vertically arranged vertical section and an inclined section, the inner cavities of the vertical section and the inclined section are connected, and the feed end of the vertical section is fixedly connected to the discharge end of the hopper.
[0007] Preferably, the water pump is fixedly connected to the outer wall of the inclined section, and the top of the inclined section is provided with an installation groove communicating with the inner cavity, and the atomizing nozzle is fixedly connected in the installation groove.
[0008] Preferably, the bottom of the inclined section has an installation port, a filter screen is fixedly connected inside the installation port, a water collection box with an open top is fixedly connected to the bottom of the outer wall of the inclined section, and a drain pipe is fixedly connected to one side of the water collection box.
[0009] Preferably, several first barrier plates and several second barrier plates are fixedly connected to both sides of the inner cavity of the inclined section. The several first barrier plates and several second barrier plates are arranged in a cross pattern. A gap is left between one side of the first barrier plate and the inner wall of the inclined section to allow coking dust to pass through.
[0010] Preferably, each of the first and second barrier plates is inclined on the side facing the feed end of the inclined section, so as to allow the coking dust to flow into the gap.
[0011] Preferably, a discharge port is provided on one side of the bottom of the conveyor box, and the discharge port is aligned vertically with the discharge end of the inclined section.
[0012] The technical effects and advantages of this utility model are as follows: In this invention, when the material is discharged, it needs to pass through the inner cavity of the inclined section in the conveying pipe. The spraying component sprays water mist into the inner cavity of the inclined section to wet the material and dust, thereby achieving a dust suppression effect. This prevents dust from being scattered and flying into the external environment when the material is discharged at the outlet end of the inclined section, ultimately achieving the dust emission reduction target. The device can achieve full-load transportation without limiting operating efficiency due to concerns about excessive dust caused by excessive transportation speed, significantly improving the overall conveying efficiency.
[0013] In this invention, the first and second barrier plates block the material, which on the one hand slows down the conveying speed of the material in the inclined section cavity, and on the other hand extends the movement path of the material and the entrained dust in this area, thereby increasing the time for the material and dust to fully contact and fuse with the atomized water and the suspended water mist in the air, ensuring that the material and dust are more thoroughly wetted by the water mist and that the dust suppression effect is more stable and reliable. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the conveyor box in this utility model; Figure 3 This is a schematic diagram of the conveying pipe in this utility model; Figure 4 This is a cross-sectional view of the conveying pipe in this utility model; Figure 5 This is a top sectional view of the inclined section in the horizontal state in this utility model; Figure 6 This is a schematic diagram of the water collection box in this utility model; Figure 7 This is a planar sectional view of the conveyor box in this utility model.
[0015] Legend: 1. Conveyor box; 2. Divider plate; 3. Conveying chamber; 4. Connecting chamber; 5. Feeding assembly; 6. Scraper conveyor assembly; 7. Discharge hopper; 8. Conveying pipe; 81. Vertical section; 82. Inclined section; 9. Water pump; 10. Atomizing nozzle; 11. Filter screen; 12. Water collection box; 13. Drain pipe; 14. First baffle plate; 15. Second baffle plate; 16. Gap; 17. Discharge port. Detailed Implementation
[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0017] Reference Figure 1-7As shown, this utility model provides a technical solution: a coking dust suppression scraper conveyor, including a conveying box 1, a partition plate 2 in the middle of the inner cavity of the conveying box 1, the inner cavity of the conveying box 1 is divided into a conveying chamber 3 and a connecting chamber 4 by the partition plate 2, a feeding component 5 for injecting coking dust into the conveying chamber 3 is installed on the top of the conveying box 1, a scraper conveying component 6 for conveying coking dust is installed in the inner cavity of the conveying chamber 3, a discharge port for discharging coking dust is opened on one side of the bottom of the partition plate 2, a discharge hopper 7 is fixedly connected in the discharge port, a conveying pipe 8 is fixedly connected to the discharge end of the bottom of the discharge hopper 7, a spraying component for wetting coking dust is provided in the inner cavity of the conveying pipe 8, the spraying component includes a water pump 9, an atomizing nozzle 10 is fixedly connected to the water outlet end of the water pump 9, and the water outlet end of the atomizing nozzle 10 is located in the inner cavity of the conveying pipe 8.
[0018] To reduce the vertical drop distance of materials and decrease dust generated by material impact and breakage, the conveying pipe 8 consists of a vertically arranged vertical section 81 and an inclined section 82. The inner cavities of the vertical section 81 and the inclined section 82 are connected. The feed end of the vertical section 81 is fixedly connected to the discharge end of the hopper 7. The material first enters the vertical section 81 and falls vertically downward to the bottom of the inner cavity of the inclined section 82. After rolling downward on the bottom of the inner cavity of the inclined section 82, the material is discharged from the discharge end. The inclined section 82 can reduce the impact of the material falling downward while allowing the material to slide downward.
[0019] In order to wet the materials and dust and thus suppress dust, the water pump 9 is fixedly connected to the outer wall of the inclined section 82. The water inlet of the water pump 9 is connected to an external water pipe, and water is supplied to the water pump 9 through the external water pipe. The top of the inclined section 82 is provided with an installation groove that communicates with the inner cavity. The atomizing nozzle 10 is fixedly connected in the installation groove. When the materials and dust pass through the inner cavity of the inclined section 82, the water pumped by the water pump 9 is sprayed out in the form of water mist through the atomizing nozzle 10 to wet the materials and dust.
[0020] In order to collect wastewater and wetted dust, an installation port is provided at the bottom of the inclined section 82, and a filter screen 11 is fixedly connected inside the installation port. A water collection box 12 with an open top is fixedly connected to the bottom of the outer wall of the inclined section 82. A drain pipe 13 is fixedly connected to one side of the water collection box 12. After the dust is wetted, it will pass through the filter screen 11 along with the water and fall into the water collection box 12. Finally, it will be discharged through the drain pipe 13 for unified collection, reducing the amount of water discharged with the materials.
[0021] To increase the time for material to pass through the inclined section 82, several first baffle plates 14 and several second baffle plates 15 are fixedly connected to both sides of the inner cavity of the inclined section 82. The first baffle plates 14 and several second baffle plates 15 are arranged in a crisscross pattern. A gap 16 is left between one side of the first baffle plate 14 and the inner wall of the inclined section 82 to allow coking dust to pass through. The material needs to pass through all the first baffle plates 14 and second baffle plates 15 before being discharged from the discharge end of the inclined section 82. The first baffle plates 14 and second baffle plates 15 increase the distance that the material needs to move to pass through the inclined section 82, thereby increasing the passage time and allowing the material more time to come into contact with the water mist.
[0022] In order to enable the material to move on its own on the baffles, each of the first baffles 14 and the second baffles 15 is inclined on the side facing the feed end of the inclined section 82, so as to make the coking dust flow toward the gap 16. The inclined arrangement allows the material to flow automatically toward the gap 16 on the baffles, and the material passes through the gap 16, maintaining the continuous flow of the material in the inclined section 82.
[0023] In order to discharge the material discharged from the discharge end of the inclined section 82 to the outside of the conveying box 1, a discharge port 17 is provided on one side of the bottom of the conveying box 1. The discharge port 17 is aligned vertically with the discharge end of the inclined section 82. The material discharged from the discharge end of the inclined section 82 passes into the discharge port 17 and is discharged to the outside of the conveying box 1 through the discharge port 17.
[0024] Working Principle: After the material is fed into the conveying chamber 3 by the feeding component 5, it is continuously conveyed by the scraper conveying component 6. When the material is conveyed to the discharge port, it falls into the discharge hopper 7 and is then guided into the conveying pipe 8. The material first passes through the vertical section 81 and then through the inclined section 82. When the material passes through the inner cavity of the inclined section 82, the water pump 9 draws water through the external water pipe and then sprays the water into the inner cavity of the inclined section 82 through the atomizing nozzle 10. This ensures that the material flowing through this area is fully in contact with the water mist and is wetted, thereby achieving a dust suppression effect. This effectively prevents dust from being scattered and flying into the external environment when the material is discharged at the discharge end of the inclined section 82, ultimately achieving the dust reduction target. The device can achieve full-load transportation without limiting operating efficiency due to concerns about excessive dust caused by excessive transportation speed, significantly improving the overall conveying efficiency. Meanwhile, to further optimize the dust suppression effect, the first baffle plate 14 and the second baffle plate 15 installed in the inclined section 82 can effectively block the material. On the one hand, they slow down the conveying speed of the material in the inner cavity of the inclined section 82, and on the other hand, they extend the movement path of the material and the dust it carries in this area. This increases the time for the material and dust to fully contact and blend with the atomized water and the suspended water mist in the air, ensuring that the material and dust are more thoroughly wetted by the water mist and that the dust suppression effect is more stable and reliable.
[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A coking dust suppression scraper conveyor, characterized in that, The system includes a conveyor box, with a partition plate in the middle of its inner cavity. The inner cavity of the conveyor box is divided into a conveying chamber and a connecting chamber by the partition plate. A feeding assembly for injecting coking dust into the conveying chamber is installed on the top of the conveyor box. A scraper conveying assembly for conveying the coking dust is installed in the inner cavity of the conveying chamber. A discharge port for discharging the coking dust is opened on one side of the bottom of the partition plate. A discharge hopper is fixedly connected to the discharge port. A conveying pipe is fixedly connected to the discharge end of the discharge hopper. A spraying assembly for wetting the coking dust is provided in the inner cavity of the conveying pipe. The spraying assembly includes a water pump. An atomizing nozzle is fixedly connected to the water outlet of the water pump. The water outlet of the atomizing nozzle is located in the inner cavity of the conveying pipe.
2. The coking dust suppression scraper conveyor according to claim 1, characterized in that: The conveying pipe consists of a vertically arranged vertical section and an inclined section, the inner cavities of the vertical and inclined sections are connected, and the feed end of the vertical section is fixedly connected to the discharge end of the hopper.
3. The coking dust suppression scraper conveyor according to claim 1, characterized in that: The water pump is fixedly connected to the outer wall of the inclined section, and the top of the inclined section is provided with an installation groove that communicates with the inner cavity. The atomizing nozzle is fixedly connected to the installation groove.
4. The coking dust suppression scraper conveyor according to claim 2, characterized in that: An installation port is provided at the bottom of the inclined section, and a filter screen is fixedly connected inside the installation port. A water collection box with an open top is fixedly connected to the bottom of the outer wall of the inclined section, and a drain pipe is fixedly connected to one side of the water collection box.
5. The coking dust suppression scraper conveyor according to claim 2, characterized in that: Several first barrier plates and several second barrier plates are fixedly connected to both sides of the inner cavity of the inclined section. The first barrier plates and several second barrier plates are arranged in a cross pattern. A gap is left between one side of the first barrier plate and the inner wall of the inclined section to allow coking dust to pass through.
6. The coking dust suppression scraper conveyor according to claim 5, characterized in that: Each of the first and second barrier plates is inclined on the side facing the feed end of the inclined section, so as to allow coking dust to flow into the gap.
7. The coking dust suppression scraper conveyor according to claim 1, characterized in that: A discharge port is provided on one side of the bottom of the conveyor box, and the discharge port is aligned vertically with the discharge end of the inclined section.